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Finding the Fourth Proportional to 354,938.87, 530,791.18 and 265,044.71

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Solution

The fourth proportional to 354,938.87, 530,791.18 and 265,044.71 is: 396,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,938.87 : 530,791.18 = 265,044.71 : x
  2. Step 2: Convert to fraction form
    354,938.87/530,791.18 = 265,044.71/x
  3. Step 3: Cross multiply
    354,938.87x = 530,791.18 × 265,044.71
  4. Step 4: Simplify right side
    354,938.87x = 140,683,394,373.66
  5. Step 5: Solve for x
    x = 140,683,394,373.66/354,938.87
  6. Step 6: Final answer
    x = 396,359.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.